html,#root,.App{
    width:100%;
    height: 100%;
  }
  *{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  .App .App_TabBar{
    width: 100%;
    position: fixed;
    bottom: 0;
    height: 6vh;
    background-color: white;
    /* border: 1px solid red; */
  }